Who said "Do what you have to do, to do what you want to do."?

This quote is attributed to Derek Shepherd.

Do what you have to do, to do what you want to do. - Derek Shepherd

"Do what you have to do, to do what you want to do."

Derek Shepherd Patience

"It's a beautiful day to save lives."

"Pick a big one. Go big or go home."

"The human body is an amazing machine."

"Excellence is not a destination; it is a continuous journey that never ends."

"Patience is a virtue I'm still learning."

"I may be a redhead, but I'm not a hothead."

"Patience is a virtue."

"Patience is a virtue I never learned."